from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.select import Select

driver=webdriver.Chrome()
driver.get('http://192.168.20.244/ecshop/admin/')
driver.maximize_window()

driver.find_element(By.NAME,'username').send_keys('caichang')
driver.find_element(By.NAME,'password').send_keys('caichang1')
driver.find_element(By.ID,'tijiao').click()

driver.switch_to.frame('menu-frame')
driver.find_element(By.LINK_TEXT,'添加新商品').click()
driver.switch_to.default_content()

driver.switch_to.frame('main-frame')
driver.find_element(By.NAME,'goods_name').send_keys('华为手机')

Select(driver.find_element(By.NAME, 'cat_id')).select_by_value('1')
driver.find_element(By.NAME,'shop_price').send_keys('5000')

driver.find_element(By.XPATH, '//*[@id="tabbody-div"]/form/div/input[2]').click()